37 Chapter 3
Figure 3.9: Default GPIO settings
3.2.3.6 DIO
There are 8 digital inputs and 8 digital outputs. This DIO page of the Sys-
tem Configurator can show their status. When the “Start” button is
pressed, the 8 DI will try to retrieve external inputs, then those pins hav-
ing positive inputs will mark respective radial buttons inside the “Digital
Input Status” block, others will make their radial buttons empty.
On the other hand, when users use mouse, finger or stylus to check some
of the 8 check boxes, the level of the related DO pins will be changed to
positive level. The DO pin status will sustain until users change them
again.
Figure 3.10: DI/DO verification
